Pump and valve structure



Dec. 1, 1931. A. w. KEGLER PUMP AND VALVE STRUCTURE Original Filed Feb 20, 1924 r1114!I!!!IllllI/lllllffflllil/rill!! Illllll/ [Ill Patented Dec. 1, 1931 TED ST T -S "PATENT OFFICE ANTON W. KEGLEB, OF MINNEAIEOLIS, MINNESOTA, ASSIGNOR TO H'. D. HUDSON MANU- F.AGTURING COMPANY, OF MINN EAPOLIS, MINNESOTA, A CORPORATION OF MINNE- SOTA PUMP AND VALVE srnucrunn Original application filed February 20, 1924, Serial No. 694,019. Divided and this application filed September 24, 1928.

This invention relates to improvements in valve structures, and the invention finds valuable application in spraying devices.

This application is'divisional of my copending application, Serial Number 694,019, filed February 20, 192 1, and renewed April 29th, 1928, for sprayers. j

Objects of the invention are to provide a casinghaving two sockets and having a passage connecting the sockets, and to provide a valve as a tubular member whichis detachably connected in the manner to control the passage between the sockets, and which valve member includes two valve control elements each detachably secured and respectively arranged at opposite sides of the connecting passage; to provide integral prongs for securing one of the valves; to provide adetac-hable foot which includes an intake passage and provides a valve seat, and acts when detachably secured to support the valve in operative position; and to provide as part of the last mentioned element a circumferential flange-like construction which has a concave portion communicating with the passage, with the margin of the flange formed to permit entry of the fluid when the periphery thereof engages a support. I

Advantages and features of the invention will be set forth in the description of the drawings forming a part of this application and in said drawings 'i igure 1 is a vertical section showing the valve applied to a pump structure, and in turn showing the pump structure arranged in a supply reservoir;

Figure 2 is an enlarged detail section of the valve; and

Figure 3 is a side elevation of the valve cage.

Numeral 1 indicates a supply tank. Lo-

cated within this supply tank is a removable self-contained structure which comprises a pump cylinder 5, an equalizing tube 6 and a common base casting 7 into which the lower ends of thetwo elements and 6 are screwed to provide liquid tight joints. A passage 8 connects the lower end of the equalizing tube 6 with the lower end of the pump cylinder 5,

but this communication is controlled through 'Serial No. 307,811.

the improved valve mechanism claimed herein. This mechanism includes a casing 10 whose axis is aligned with that of the equalizing tube 6; The casing provides the liquid passage, and has a screw threaded engagement as at 11 with the casing 7. This casing 10 is provided with a circumferential flange 12 which limits its inward movement and the outer end of the casing is counter-turned as at 13 and fits within an opening 14: of the casting 7, see Figure 2. The casing 10 is threaded interiorly as at 15 and receives the corresponding threads of a tubular extension 16 having a flared foot generally indicated at 17. This foot is of disc-like formation and provides a downwardly concaved lower face. The periphery of this disc is formed to permit entry of fluid when the disc is engaged against the bottom of the supply tank or as shown against the bowed strip 19 arranged in the bottom of the supply tank 1. r The tubular portion 16 provides a seat against which a valve 20 engages bygravity to close the port when pressure is applied in the passagev 8. The arrangement of the element 17 and its tubular extension is therefore such that after the ball valve is placed within the casing 10 this extension 16 acts as a closure and a seat, a feature of the invention. The port formed by the tubular portion 16 is closed by'a wire gauze 21 substantially as shown, so that undissolved portions of the solution cannot enter the pump to clog the valve mechanism. Communication between the'cylinders 5 and 6 is controlled through ports 22 of the casing 10, and through a port 23 of the same casing. This last portion is closed by a gravity actuated ball valve 24 limited in its unseating movement and detachably secured by prongs 26 integral with the casing 10. p

Another feature is the provision of the extension 38 on the bottom of the casting 7 As shown in Figure 1, this extension 38 is designed to engage an opening 39-of the .ture of the invention.

ing features are valuable because the pumping apparatus can be quickly withdrawn and introduced and properly fastened always with the intake element properly positioned. it will be noted that the bowed element 19 supports the intake port formed by the element 16, above the bottom so that sediment is not. readily drawn into the pumping apparatus. pump and connecting it by means of the elements 19 and 38 are features shown in my copending application above referred to.

The socketed casting 7 having the passage connecting the threaded sockets, along with a tubular member having a portion extending into one ofthe sockets and removably arranged as a valve unit, is a valuable fea- The casing 10 extends across the socket connecting passage, and

vthat portion of the casing 10 which extends into the sockets has the integral prongs which enclose and limit the movement of the gravity operable valve 24. This arrangement of the valve 24 held in position by the elements 26 along with the utilization of the disk 17 as means for securing the valve 20 in operative position, and providing a seat therefor, gives a cheap compact two-valve construct-ion.

The valve casing 10 cuts off communication between the pump cylinder and the equalizing tube extension through the ports 22 23. The ports 22 are always open, but the axial port 223 isnormally closed by theball 24. The check valve 20 is loosely seated to close the port in the tubular member 16.

hen in' operation the spraying liquid having been first placed in the supply tank 1, and before the pump has been operated, there will be no liquid in the tube 6. ,lVhen the pump is operated the liquid will be drawn into the pump cylinder 5 as the result of an upstroke of the piston 40 and it will be forced into the tube 6 upon a downstroke by forcing the valve 24 upwardly, this procedure acting to maintain the valve 20 in closed position and prevent egress into the tank. As the liquid is forced into the tube 6 the air confined in it above the liquid will be put under higher and higher compression until the procedure is su'ilicient to force the liquid upwardly through the tube 41 through passage 42, to point of delivery which may be a suitable discharge apparatus or a pressure tank. Under continued operation of the pump the liquid will be caused to accumulate and rise within the tube 6 so that pressure will continue to increase. The pumping operation with the exception of the action of the liquid as the result of the movement of the piston 40 do not form a feature of this invention.

However, a feature of the invention in cludes the elements 5 and 6 and their ai rangements relatlve to the casting 7 and pass- The' manner of mounting the ages therein, and relative to the casing 10 and its ports and valve.

I claim as my invention:

1. A hollow base, a cylinder attached to the base, a tubular valve casing crossing the base and having a threaded connection therewith and communicating with the cylinder, said casing having a wrench surface at the outside of the base and having an intake extension, said extension having a portion projecting into the casing and having threaded connection therewith and forming a valve seat, and a valve within the casing coo-perable with the seat, the casing having an opening establishing communication between it and the 1101- low base. i

, 2. A hollow base, a cylinder attached to the base, a tubular valve casing crossing the base and having a threaded connection therewith,

and having a ball valve and means operatively securing it to open into the cylinder and i for closing the casing, said casing having a wrenchsurface at the outside of the base, and

having an intake extension disposed outwardly beyond the wrench surface and said extension having a portion projecting into the casing and having threaded connection therewith and forming a valve seat, and a valve within the casing cooperable with the seat,

the casing having an opening located between the valves and establishing communication between the hollow base and the tubular casing.

'3. A hollow base having aligned openings one in each of two opposed walls, a cylinder attached to the base in opposition to one of the openings, a tubular valve casing having a threaded connectionwithone of the openings and fitting and closing that opening nearest the cylinder and having a ball valve and means operatively securing it at the end of the casing which opens into the cylinder, said casing having a wrench surface at the outside of the base, and having an intake extension, said extension having a portion projecting into the casing, and having threaded connection therewith, and forming a valve seat, and a ball valve within the casing cooperable with the seat, the casing having an opening located between the valves and establishing communication between the hollow base and the tubular casing.

In witness whereof, I have hereunto mt my h and this 18th day of September, 1928.

ANTON W. KEGLER. 

